Ice-scoring machine



March 1,1927. C'JOBST ICE SCORINGMACHINE Filed Dec. 17. 1923 3Sheets-Sheet l y?? l J0 7 INVENToR.

A TTORNEYS 1,619,128 March l 1927 c. JoBs'r ICE SCORING MACHINE FiledDec. 17, 1923 3 Sheets-Sheet 2 /A?. I INVENTOR.

BY 'o/zmo/ s Y ATTORNEYS arch 927 C' JOBST ICE SCORING MACHINE FiledDec. 17. 1925l 5 sheets-sheet NVENTOR.

alba-K d l TOREYSL'N /Tl 4 y im v said cakes into' sections of exactlyCONRAD JOBSL'VOF TOLEDO,

ULINE ICE-SCORING MACHINE, COMPANY,

PoBA'rIoN ATEs. PATENT OFFICE.

OF DELAWARE.

OHIO, VASSIGNOB, BY MESNE ASSIGNMENTS, T0

THE or WILMINGTON, DELAWARE, A coavIcE-scoame MACHINE.-

Application med December 17, 1923. Serial No. 681,259.

This invention [relates to machines for scoring -ice cakes, the freezingcans in an u permit of subsequently dividing predeter soasto mined sizeand such as are delivered\from artificial ice plant,

weight.

The invention consists in the structural features and arrangement afterset forth.

In theA drawings:- Figure 1 is an end machine Figure 2 1s of partshereinview of the improved a transverse section `on the line 2-2 ofFigure 1;

Figure 3 is an enlarged cross sectionron line 3-3 of Figure 1; Figure 4is a cross section on line 4-4 of Figure 1.

In these views,

an ice cake and 2 a support upon designates which said cake rests whilebeingscored the machine. 3 endless chains cally and arranged at.opposite sides of the' 4 are scoring elements carried support 2.

the reference character 1 by and 3 designate two sets o f preferablyelongated vertiby each of said chains and aligned longitudinallythereof, said elements ing the nature preferably havof'saw teeth. Eachof said chainsis mounted uponl upper and lower sprocket wheels 5 and 5awhich are fast upon upper and lower shafts 6 and 6 journaled in the freeends upper and lower shafts 8 and 8. 8 and 8 are suitably 7 mounted uponThe shafts mounted in the frame of rock arms of the machineindicatedgenerally by the reference character 30. The arms 7 together withrelativel short arms 9, form bell crank members, an

10 designates rods connecting the arms 9 of the upper and lower bellcrank members. The

upper bell crank members 7,

9 are loose upon their shafts 8, and the corresponding lower l bellcrank members are fast upon their shafts 8. Preferably .the rods 10 areterminally reversely screwed 1nto sleeves 11 pivotally thus providinglength of and lower bell engaging the arms 9,

for an adjustment in the the connections between the upper crankmembers. From each shaft 8, a drive connection is established to theadjacent shaft 6 through a chain 12,

AK drive connec relatively transverse shaft 13 is established through apair drive pulley fa tion to each shaft 6 from a of bevel gears 14. 15is av st upon the shaft 13. Thus nel elements it is seen that theinvention provides two substantially duplicate sets of scoringinechanismfor acting upon opposite faces of the lee block 1. One of the upperrockarms 7 of each set is connected by a link 17 to a pin 18 midwaybetween said sets which engages in the cam groove 19 of a cam member 19,Said member is rotatively driven from the shaft 13 through a worm 19band a worm wheel 19. Said cam is adapted to subject thepin 18 to aslight vertical travel which actsl through the links` 17 to alternatelyswing the rock arms 7 to and vfrom each other. Thus the two sets ofchains 3 and 3 are alternately shifted to and from each other to feedthe saw teeth 4 into opposite side -faces of the ice cake 1 and duringsuch feeding movement said chains are continuously driven through thechains 12a. To mount the saw teeth 4 upon the chains 3 and 3 there areemployed carriers 20 secured `to the links of said chains by the pins 21which connect sai-d links. The carriers 2() are of a channel shape toembrace the chain links 3 and 3 and each has formed upon its outer facethe integral clamping' member 22. With each of the latter there coacts adetachable clamp 23, the base portion of each double saw tooth 4 beingengaged between a pair of the members 22 and 23, which are clamped uponsaid tooth by screws 23. A With eachof thel chains 4 there is associateda guide bar 24, the upper Vand lower ends of which are pivotedrespectively upon the shafts 6 and 6. Preferably said bars areterminally forked to form bearings 25 engaging said shafts 6 and `6 atopposite sides of the sprocket wheels 5 and 5a. Each guide bar 24carriesa pair of Z-sha d bars 26 spaced to form a channel throug which theworking span of the corresponding chain 3 or 3 with its carrier members20, may travel. 27 are bolts securing the chan- 26 to the main guidebars 24, and 28 is a wear plate clamped between said channel elementsand each l guide bar 24, the carrier members 2O having contact with saidplate 28 when traveling between the chaunel elements 26 and said platereceiving the' reaction thrust to which the working span of each chainis subjected during scoring of an ice block.

In the operation of the described construction; the pulley 15 beingcontinuously driven imparts continuous rotation through the shaft 13 andbevel gearing 14 to the shafts 8 and the latter act through thechains12* to continuously drive the shafts 6. Thus the two sets of chains 4are continuously driven, the adjacent, or working spans of said chainsmoving upwardly as indicated by the arrows in Figurel. The shaft 13 alsoacts through the worm 19h and worm wheel 19 to continuously drive thecam 19, which latter acting through the links 17, periodically swingsthe work arms 7 of the two sets to and from each other. This rockingmovement is of a magnitude predetermined to feed the saw teeth 4 intothe block 1 to produce kerfs or scores of the desired depth. The shapeof the cam oove 19 is such as to cause a gradual feeding of the sawteeth 4 into the ice block 1 and a relatively quick retractive travel,said groove further providing for a stationa period of the two sets ofarms 7 du-ring w ich a scored block may be removed from the support 2and another block be placed thereupon. The guide members 24, 26,engaging the working or upwardly traveling spans of the chains 3 and 3',being mounted u on the shafts 6 and 6, move to and from t e ice block 1in unison with said chains. By engaging said chains, and moreparticularly the carrier members 20 with said guide members, the sawteeth 4 are held in perfect longitudinal alignment during the scoringoperation and furthermore the reaction thrust ofthe work upon saidchains and carrier members is rigidly resisted by the guide member 24.The plates 28 receive the wear resulting from said reaction thrust andsaid plates may be replaced when the wear thereupon is excessive.

It is to be understood that the chains of each set 3 and 3 may be sospaced as to effect cutting of the block 1 into sections of the desiredpredetermined size or sizes.

What I claim as my invention is l. An ice scoring machine comprising,

endless scoring elements arranged to engage opposite-sides of an iceblock and means for s1mu1taneous1y moving said scoringl elementsparallel with the sides of the block and means for feeding the scoringelements toward each other into the block.

2. An ice scoring machine comprising endless scoring elements arrangedto engage opposite sides of an ice bloc means for continuously movingsaid scorin elements through rectilinear paths, each substantiallyparallel with a side of the block and means for feeding said scoringelements transverse to said rectilinear paths and toward each other intothe block.

3. An ice scoring machine comprisin a support foran ice block, elongatedflexi le members arranged at opposite sides of said support, a series ofice scoring elements carried by each of said members alignedlongitudinally of the latter, means for moving said flexible membersbodily toward each other to oppositely engage said scoring elements withan ice block on said support, and means for continuously driving saidflexible members during such feeding movement.

4. An ice scoring machine comprising a ing each of said flexiblemembers, means for l rocking said arms in unison for bodily actuatingsaid flexible members toward each other and simultaneously engaging saidscoring elements -with o posite sides of a block on said support, ang acommon means for actuating said flexible members longitudinally duringsuch feeding movement.

5. An ice scoring machine comprisin a supportfor an ice block, elongatedflexible members arranged at opposite sides of Said support, a series ofice scoring elements carried by each of said members and alignedlongitudinall thereof, rotatable supports for said flexible members,spaced rock arms mounting the rotatable su ports of each flexiblemember, a cam mem er acting u-pon a supporting rock arm of each of saidflexible members to periodically rock said members toward each other,and acommon means for continuously driving said flexible members duringsuch rocking movement.

l 6. An ice scoring machine comprising a support for an ice cake, aseries of elongated flexible members arranged on opposite sides of saidsupport, ice scoring elements carried by` each of said flexible members,means for longitudinally actuating said flexible members, a uide forsaid scoring elements of each flexi le member and means forsimultaneously moving the guide member of each series of flexiblemembers toward the other series in a direction transverse to theelongation of said flexible members.

7. An ice scoring machine comprising a horizontal support for an icecake, a pair of elongated endless cutters arranged vertically onopposite sides of said support, said cutters each assing throu h arectilinear path, means or continuous moving said cutters and means forbodi y moving the cutters toward `each vother simultaneously scoringopposite sides of the ice cake.

8. An ice scoring machine com rising a stationary frame, a support foran ice block, a pair of rock arms of equal length pivoted on said frame,rotatable members journaled on each rock arm, an endless flexible memberextending around said rotatable members, ice scoring elements carried bsaid flexible member, a guide for said exible member extending betweensaid rock arms and having a rectilinear portion opposite the ice cakeand means for synchronously oscillating said rock arms through apredetermined distance whereby said ice scorind elements are fed intothe ice cake a limited distance forming a kerf of uniform depth.

9. An ice scoring machine comprising :L stationary frame, a support foran ice block, a pair of rock arms pivoted on said frame, rotatablemembers journaled on each rock arm, an endless flexible member extendingaround said rotatable members, ice scoring elements carried by saidflexible member, a

guide for said flexible member extending 15 etween said rock arms andhaving a rectilinear portion opposite the ice cake, a rod connectingsaid rock arms, a cam follower connected to one of said rock arms and acontinuously rotating cam engaging said cam follower, vsaid cam beingadapted to feed the ice scoring elements into said ice cake for apredetermined distance and subsequently to retract said elements.

In testimony7 whereof I aix my si ature.

CONRAD JO ST.

